Cloth-feed mechanism for blindstitch sewing-machines



I. GOLDBERG.

CLOTH FEED MECHANISM FOR BLINDSTITCH SEWING MACHINES.

APPLICATION FILED SEPT-3, 1919. 1,352,061.

Patented Sept. 7, 1920.

Illllilllllllllllllllf- NW W W scribed in the specification and illusta.

UMTED sTAras rarest orrica.

JACOB GOLDBERG, 0F CINCINNATI, o iro, Assreiion To THE eennnnne PADDING MACHINE COMPANY, or CINCINNATI, OHIO, A ecnrenarron or onto.

CLOTH-FEED MEcHaNIeir son isnmnsriren SEWING-MACHINES.

Application fi1ed September T0 all whom it may concern Feed Mechanism for Blindstitch Sewing- Machine of which the following is a s iccifica-tion.

My invention relates to a machine which may be used either for blind-stitching or for telling. In the former it is necessary for the bridge to project well into the feed slot of the table so that the needle will take a deep stitch so as to pass into all the layers otthe goods. the latter it is necessary for the bridge to project to a less amount into the feed slot so that the needle will pass into only the two upper layers of the cloth, and only to a small depth into the lower of these layers.

In factories the change from one to the other of these operations is frequent and heretofore the change of the feed. mecha nism was a nice adjustment. which required the use of considerable skill upon the part oi the operator.

It is the object of my invention to pro vide a bridge which may he changed from a blind-stitching to a telling position, quickly and without any manipulation.

This object is attained by the means in the accompanying drawings in whirl l i cc ure l, is a front elevation of the e and the feed mechanism of a blin sewing machine and of a bridgeconstruction embodying my invention.

Fig. 2, is a sectional View taken upon line 22 of Fig. 1. r

Fig. 3, a side eleyation of a set forming a detail of niyinvention.

screw Table A is provided with the usual longitudinal teed slot a feed rolls B and sit: iort D "for the feed rolls.

Support D has two lugs [Z between which is mounted apin 0 upon which the rear end oi bridge E is pi-ve'tedj In longitudinal alinement with lugs (Z are two lugs 65', (Z between which extend the forwaru end Specification of Letters Patent.

6 11 our. er: slot c is termed in the b3 bridge is made pr'ot pin upon the support. l the supnort opp h Patented Sent. '2, 13526.

3, 1919. Serial at. 321,372.

bridge E, which terminates in linger piece iLifi'G t1 p :4 J 7 W1 1 p1 vot c as us center or cut 'ature. Plot 6 is adapted to pass the recuced end 5/ of set screw which seated in a series threaded transverse bore in lug d. allot 6 is of a lengh such that when its miner end contacts with en: e, the bri-tl 'c is iii sition for telling, and when its wer cu l contacts with the end the bri 5).6 is in position for blin(l-s t l witi the ordi nary thickness of e.

Hence in owerat pushinc' the on: resettn "he scie Laying thus describec my intention. what I claim is 1. in a machine oi? the end a ted in the sup end t trough the ot, th (16 reduced end being adapted to imi the H10"S111Cfit ot' the bridge and being so proportioned that at one limit of movement of the bridge the machine is adapted to telling RIM. at the other limit 02% inoi'i: stitching.

the chi; the combination of a bridge sup 1 i run. en the luci) and having a lugs, and a set screw mounted ugs and having a reduced end lot, the sit and the reduccc ted to limit the movement of 60 proportioned that tee liz-ride'c the and at the adapted for for to. l i

e is adapted llfllt of more. :titching I testimony whereof. I subscribed my name t iis 2nd berg, 19,19.

have hereunto 5 Y 4 C day oi. oeptommoon OLDBERG. 

